#1. 50 tens or 5 hundreds
#2. 110 tens, 11 hundreds, or 1 thousand 1 hundred
#3. 300 tens, 30 hundreds, or 3 thousands.
#4. 2500 tens, 250 hundreds, 25 thousands, or 2 ten thousands 2 thousands
#5. 6000 tens, 600 hundreds, 60 thousand, or 6 ten thousands.
#6. 11000 tens, 1100 hundreds, 110 thousands, or 11 ten thousands.
#7. 2500 tens, 250 hundreds, 25 thousands, or 2 ten thousands 5 thousands
#8.90000 tens, 9000 hundreds, 900 thousands, or 90 ten thousands